Query the City of Philadelphia's annually-updated street/park tree inventory via its ArcGIS FeatureServer
domain: opendataphilly.org · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Identify the current year's dataset on OpenDataPhilly (e.g., '2025 Philadelphia Tree Inventory'), since a new FeatureServer is published each year rather than one perpetually-updated service
Query the confirmed endpoint pattern https://services.arcgis.com/fLeGjb7u4uXqeF9q/arcgis/rest/services/ppr_tree_inventory_{year}/FeatureServer/0/query?outFields=*&where=1=1 for the desired year
Add a WHERE clause (species, diameter, condition, etc.) and f=geojson or f=json to control the response format
Alternatively use the pre-built CSV/SHP/GeoJSON bulk download links (hub.arcgis.com/api/v3/datasets/{item-id}_0/downloads/data?format=...) for full-dataset pulls
Cross-check the metadata.phila.gov representation-details page for the year's field dictionary before parsing
Known gotchas
Each year (2021-2025+) has its own separate FeatureServer service name (e.g., ppr_tree_inventory_2025) and sometimes a different URL casing/path pattern (2021-2022 use 'ArcGIS/rest', later years use lowercase 'arcgis/rest') — do not assume URL stability across years
This is Philadelphia Parks & Recreation's inventory (all trees within city limits), a distinct dataset from the NYC 2015 Street Tree Census and SF DPW Street Tree List already in the corpus
Data is a snapshot in time updated yearly, not real-time
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